Two of Iran's nuclear plants have been struck by a cyber attack, causing all the computers to play AC/DC's "Thunderstruck" on repeat at full volume.

This lates virus shut down the facilities in Natanz and Fordow, and cranked them up to 11. Finnish cyber security site F-Secure's researcher Mikko Hypponen had received several emails to himself and his team from a scientist at the Atomic Energy Organization or Iran. He published one on Monday.

I am writing you to inform you that our nuclear program has once again been compromised and attacked by a new worm with exploits which have shut down our automation network at Natanz and another facility Fordo near Qom.

According to the email our cyber experts sent to our teams, they believe a hacker tool Metasploit was used. The hackers had access to our VPN. The automation network and Siemens hardware were attacked and shut down. I only know very little about these cyber issues as I am scientist not a computer expert.

There was also some music playing randomly on several of the workstations during the middle of the night with the volume maxed out. I believe it was playing 'Thunderstruck' by AC/DC.

Think of any form of email scam and you have a general idea of what has happened: a file was opened and it spread the infusing sounds of rock'n'roll. The worm is considered to be a form of cheap and open-source malware, meaning it is accessible by almost everyone, making the task of finding the culprit ever more difficult. Of course, this has been only one in a string of previous attacks, with the Flame super-virus attacking last month, which Iran blamed on a cyberattack conjunction between Israel and the US (as reported on by The Washington Post). One thing's for sure though, we haven't seen the end of this yet.